1. Is this a good time to build crypto portfolio?
In fact, you can build a portfolio at any time, as long as the market is experiencing a decline and you are sure that the coins can provide profits, in the short or long term according to your wishes.
that's just my opinion, not to be applied because I usually do that
2. Do you really think that bear market will be a dipping as 2018?
I hope 2018 will not happen again, even if it does, the grades will definitely be better than 2018